organic compounds
Methyl 9-diethylamino-2,2-bis(4-methoxyphenyl)-2H-benzo[h]chromene-5-carboxylate
aBiomaterial Research Center, Korea Research Institute of Chemical Technology, PO Box 107, Yuseong, Daejeon 305-600, Republic of Korea, bEnvironment and Resources Research Center, Korea Research Institute of Chemical Technology, PO Box 107, Yuseong, Daejeon 305-600, Republic of Korea, and cCenter for Chemical Analysis, Korea Research Institute of Chemical Technology, PO Box 107, Yuseong, Daejeon 305-600, Republic of Korea
*Correspondence e-mail: chkim@krict.re.kr
In the title compound, C31H29NO5, the methyl carboxylate and dimethylamino groups on the naphthopyran group are almost coplanar with the naphthopyran ring system [r.m.s. deviations = 0.08 (2) and 0.161 (2) Å, respectively]. The dihedral angle between the methyl carboxylate and dimethylamino groups is 4.9 (1)°. The pyran ring has an with the quaternary C atom out of plane by 0.4739 (13) Å. The methoxyphenyl substituent forms a dihedral angle of 16.6 (1)° with the plane of the benzene ring, while the other methoxyphenyl group is almost coplanar, making a dihedral angle of 1.4 (1)°.
Related literature
For the synthesis and properties of organic photochromic and thermochromic dyes, see: Clarke et al. (2002); Gabbutt et al. (2003, 2004); Kim et al. (2010); Do et al. (2011). For their applications, see: Kumar et al. (1995); Gemert & Selvig (2000); Nelson et al. (2002); Crano & Guglielmetti (1999).
Experimental
Crystal data
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Data collection: APEX2 (Bruker, 2009); cell SAINT (Bruker, 2009); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: XP in SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXL97.
Supporting information
10.1107/S160053681101049X/pk2310sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S160053681101049X/pk2310Isup2.hkl
A solution of methyl 6-dimethylamino-4-hydroxy-2-naphthoate (5 mmol) and 1,1-di(4-methoxyphenyl)-prop-2-yn-1-ol (5 mmol) in toluene (60 ml) containing acidic alumina (5 g) was refluxed for 2 hrs. The cooled solution was filtered and the alumina residue washed well with ethyl acetate (3 x 50 ml). Removal of the dried solvent gave a yellow solid which was flash chromatographed using 20% ethyl acetate in hexane as the
to give an off-white solid. Single crystals of the title compound suitable for X-ray diffraction were obtained by recrystallization from ethyl acetate solution.All H atoms were placed in calculated positions using a riding model, with C—H = 0.93 Å and Uiso(H) = 1.2 Ueq(C) for aromatic H atoms, C—H = 0.96 Å and Uiso(H) = 1.5 Ueq(C) for methyl H atoms.
Data collection: APEX2 (Bruker, 2009); cell
SAINT (Bruker, 2009); data reduction: SAINT (Bruker, 2009); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: XP in SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008.C31H29NO5 | Z = 2 |
Mr = 495.55 | F(000) = 524 |
Triclinic, P1 | Dx = 1.358 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 9.8923 (1) Å | Cell parameters from 9961 reflections |
b = 10.9535 (1) Å | θ = 2.2–28.4° |
c = 12.1720 (2) Å | µ = 0.09 mm−1 |
α = 93.860 (1)° | T = 100 K |
β = 112.334 (1)° | Block, pale yellow |
γ = 93.484 (1)° | 0.31 × 0.20 × 0.13 mm |
V = 1211.85 (3) Å3 |
Bruker APEXII CCD diffractometer | 5207 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.021 |
Graphite monochromator | θmax = 28.4°, θmin = 1.8° |
ϕ and ω scans | h = −13→13 |
22031 measured reflections | k = −12→14 |
6075 independent reflections | l = −16→16 |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.040 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.111 | H-atom parameters constrained |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0551P)2 + 0.4305P] where P = (Fo2 + 2Fc2)/3 |
6075 reflections | (Δ/σ)max < 0.001 |
336 parameters | Δρmax = 0.35 e Å−3 |
0 restraints | Δρmin = −0.25 e Å−3 |
C31H29NO5 | γ = 93.484 (1)° |
Mr = 495.55 | V = 1211.85 (3) Å3 |
Triclinic, P1 | Z = 2 |
a = 9.8923 (1) Å | Mo Kα radiation |
b = 10.9535 (1) Å | µ = 0.09 mm−1 |
c = 12.1720 (2) Å | T = 100 K |
α = 93.860 (1)° | 0.31 × 0.20 × 0.13 mm |
β = 112.334 (1)° |
Bruker APEXII CCD diffractometer | 5207 reflections with I > 2σ(I) |
22031 measured reflections | Rint = 0.021 |
6075 independent reflections |
R[F2 > 2σ(F2)] = 0.040 | 0 restraints |
wR(F2) = 0.111 | H-atom parameters constrained |
S = 1.05 | Δρmax = 0.35 e Å−3 |
6075 reflections | Δρmin = −0.25 e Å−3 |
336 parameters |
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. |
x | y | z | Uiso*/Ueq | ||
O1 | 0.76711 (8) | 0.30077 (7) | 0.13618 (7) | 0.01516 (16) | |
C2 | 0.85589 (11) | 0.20946 (10) | 0.20221 (9) | 0.0146 (2) | |
C3 | 0.87855 (11) | 0.11475 (10) | 0.11607 (10) | 0.0160 (2) | |
H3A | 0.8917 | 0.0346 | 0.1359 | 0.019* | |
C4 | 0.87987 (12) | 0.14469 (10) | 0.01194 (10) | 0.0166 (2) | |
H4A | 0.8955 | 0.0858 | −0.0396 | 0.020* | |
C5 | 0.88292 (11) | 0.31985 (10) | −0.11883 (9) | 0.0150 (2) | |
C6 | 0.85247 (11) | 0.43872 (10) | −0.14310 (10) | 0.0157 (2) | |
H6A | 0.8712 | 0.4709 | −0.2052 | 0.019* | |
C7 | 0.76333 (12) | 0.63497 (10) | −0.10014 (10) | 0.0168 (2) | |
H7A | 0.7844 | 0.6683 | −0.1607 | 0.020* | |
C8 | 0.70393 (12) | 0.70498 (10) | −0.03624 (10) | 0.0178 (2) | |
H8A | 0.6867 | 0.7854 | −0.0533 | 0.021* | |
C9 | 0.66750 (12) | 0.65696 (10) | 0.05674 (10) | 0.0176 (2) | |
C10 | 0.70099 (12) | 0.53750 (10) | 0.08386 (10) | 0.0161 (2) | |
H10A | 0.6810 | 0.5051 | 0.1454 | 0.019* | |
C11 | 0.85677 (11) | 0.27014 (10) | −0.02134 (9) | 0.0146 (2) | |
C12 | 0.80112 (11) | 0.34390 (10) | 0.04496 (9) | 0.0144 (2) | |
C13 | 0.79380 (11) | 0.51228 (10) | −0.07627 (9) | 0.0150 (2) | |
C14 | 0.76453 (11) | 0.46558 (10) | 0.01930 (9) | 0.0143 (2) | |
C15 | 0.76705 (11) | 0.14752 (10) | 0.26565 (9) | 0.0146 (2) | |
C16 | 0.82776 (12) | 0.05611 (10) | 0.33973 (10) | 0.0171 (2) | |
H16A | 0.9253 | 0.0419 | 0.3577 | 0.020* | |
C17 | 0.74499 (12) | −0.01354 (10) | 0.38671 (10) | 0.0169 (2) | |
H17A | 0.7872 | −0.0735 | 0.4363 | 0.020* | |
C18 | 0.59832 (12) | 0.00633 (10) | 0.35958 (9) | 0.0152 (2) | |
C19 | 0.53879 (12) | 0.10179 (10) | 0.29232 (10) | 0.0167 (2) | |
H19A | 0.4431 | 0.1191 | 0.2783 | 0.020* | |
C20 | 0.62394 (12) | 0.17146 (10) | 0.24595 (9) | 0.0158 (2) | |
H20A | 0.5839 | 0.2352 | 0.2009 | 0.019* | |
O21 | 0.52207 (8) | −0.07485 (7) | 0.40074 (7) | 0.01794 (17) | |
C22 | 0.36555 (12) | −0.07890 (11) | 0.34952 (11) | 0.0211 (2) | |
H22A | 0.3245 | −0.1387 | 0.3851 | 0.032* | |
H22B | 0.3311 | −0.1011 | 0.2651 | 0.032* | |
H22C | 0.3360 | 0.0005 | 0.3640 | 0.032* | |
C23 | 1.00119 (11) | 0.27358 (10) | 0.29325 (9) | 0.0149 (2) | |
C24 | 1.12940 (12) | 0.21328 (10) | 0.33087 (10) | 0.0170 (2) | |
H24A | 1.1278 | 0.1341 | 0.2973 | 0.020* | |
C25 | 1.25908 (12) | 0.26982 (10) | 0.41753 (10) | 0.0181 (2) | |
H25A | 1.3431 | 0.2281 | 0.4424 | 0.022* | |
C26 | 1.26337 (12) | 0.38915 (10) | 0.46725 (10) | 0.0171 (2) | |
C27 | 1.13676 (12) | 0.45073 (10) | 0.43051 (10) | 0.0182 (2) | |
H27A | 1.1387 | 0.5303 | 0.4633 | 0.022* | |
C28 | 1.00713 (12) | 0.39214 (10) | 0.34431 (10) | 0.0174 (2) | |
H28A | 0.9227 | 0.4334 | 0.3204 | 0.021* | |
O29 | 1.39640 (9) | 0.43746 (8) | 0.55056 (7) | 0.02068 (18) | |
C30 | 1.40552 (14) | 0.56030 (12) | 0.60149 (12) | 0.0259 (3) | |
H30A | 1.5036 | 0.5838 | 0.6583 | 0.039* | |
H30B | 1.3381 | 0.5650 | 0.6409 | 0.039* | |
H30C | 1.3810 | 0.6148 | 0.5396 | 0.039* | |
C31 | 0.94328 (11) | 0.24645 (10) | −0.19365 (10) | 0.0161 (2) | |
O32 | 0.97530 (10) | 0.14182 (8) | −0.18347 (8) | 0.0256 (2) | |
O33 | 0.95645 (10) | 0.30908 (8) | −0.28129 (7) | 0.02223 (19) | |
C34 | 1.01776 (14) | 0.24406 (12) | −0.35540 (11) | 0.0252 (3) | |
H34A | 1.0232 | 0.2948 | −0.4152 | 0.038* | |
H34B | 0.9565 | 0.1696 | −0.3933 | 0.038* | |
H34C | 1.1145 | 0.2244 | −0.3071 | 0.038* | |
N35 | 0.60408 (13) | 0.72739 (10) | 0.11748 (10) | 0.0270 (2) | |
C36 | 0.55830 (14) | 0.84722 (11) | 0.08327 (11) | 0.0223 (2) | |
H36A | 0.6429 | 0.9023 | 0.0950 | 0.033* | |
H36B | 0.5084 | 0.8789 | 0.1315 | 0.033* | |
H36C | 0.4933 | 0.8398 | 0.0007 | 0.033* | |
C37 | 0.56895 (14) | 0.67773 (11) | 0.21202 (11) | 0.0241 (3) | |
H37A | 0.5018 | 0.6052 | 0.1801 | 0.036* | |
H37B | 0.5246 | 0.7379 | 0.2450 | 0.036* | |
H37C | 0.6572 | 0.6573 | 0.2734 | 0.036* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0179 (4) | 0.0152 (4) | 0.0146 (4) | 0.0045 (3) | 0.0076 (3) | 0.0057 (3) |
C2 | 0.0161 (5) | 0.0134 (5) | 0.0146 (5) | 0.0033 (4) | 0.0056 (4) | 0.0048 (4) |
C3 | 0.0178 (5) | 0.0129 (5) | 0.0180 (5) | 0.0029 (4) | 0.0072 (4) | 0.0029 (4) |
C4 | 0.0177 (5) | 0.0147 (5) | 0.0175 (5) | 0.0017 (4) | 0.0070 (4) | 0.0010 (4) |
C5 | 0.0150 (5) | 0.0154 (5) | 0.0142 (5) | 0.0003 (4) | 0.0055 (4) | 0.0013 (4) |
C6 | 0.0149 (5) | 0.0174 (5) | 0.0148 (5) | 0.0003 (4) | 0.0056 (4) | 0.0033 (4) |
C7 | 0.0170 (5) | 0.0176 (5) | 0.0156 (5) | 0.0007 (4) | 0.0055 (4) | 0.0045 (4) |
C8 | 0.0196 (5) | 0.0148 (5) | 0.0178 (5) | 0.0023 (4) | 0.0055 (4) | 0.0040 (4) |
C9 | 0.0193 (5) | 0.0170 (5) | 0.0157 (5) | 0.0025 (4) | 0.0058 (4) | 0.0006 (4) |
C10 | 0.0181 (5) | 0.0164 (5) | 0.0140 (5) | 0.0019 (4) | 0.0061 (4) | 0.0029 (4) |
C11 | 0.0146 (4) | 0.0144 (5) | 0.0135 (5) | 0.0006 (4) | 0.0042 (4) | 0.0016 (4) |
C12 | 0.0140 (4) | 0.0159 (5) | 0.0126 (5) | 0.0002 (4) | 0.0044 (4) | 0.0032 (4) |
C13 | 0.0141 (4) | 0.0153 (5) | 0.0140 (5) | −0.0001 (4) | 0.0039 (4) | 0.0025 (4) |
C14 | 0.0135 (4) | 0.0141 (5) | 0.0134 (5) | 0.0003 (4) | 0.0032 (4) | 0.0020 (4) |
C15 | 0.0169 (5) | 0.0137 (5) | 0.0129 (5) | 0.0005 (4) | 0.0057 (4) | 0.0008 (4) |
C16 | 0.0152 (5) | 0.0188 (5) | 0.0176 (5) | 0.0025 (4) | 0.0062 (4) | 0.0040 (4) |
C17 | 0.0187 (5) | 0.0170 (5) | 0.0155 (5) | 0.0033 (4) | 0.0063 (4) | 0.0050 (4) |
C18 | 0.0183 (5) | 0.0148 (5) | 0.0131 (5) | −0.0006 (4) | 0.0073 (4) | −0.0002 (4) |
C19 | 0.0163 (5) | 0.0175 (5) | 0.0170 (5) | 0.0033 (4) | 0.0072 (4) | 0.0011 (4) |
C20 | 0.0186 (5) | 0.0140 (5) | 0.0143 (5) | 0.0030 (4) | 0.0055 (4) | 0.0017 (4) |
O21 | 0.0169 (4) | 0.0192 (4) | 0.0202 (4) | 0.0012 (3) | 0.0094 (3) | 0.0051 (3) |
C22 | 0.0169 (5) | 0.0254 (6) | 0.0205 (5) | −0.0022 (4) | 0.0075 (4) | 0.0019 (5) |
C23 | 0.0165 (5) | 0.0161 (5) | 0.0138 (5) | 0.0011 (4) | 0.0075 (4) | 0.0038 (4) |
C24 | 0.0190 (5) | 0.0149 (5) | 0.0187 (5) | 0.0024 (4) | 0.0086 (4) | 0.0036 (4) |
C25 | 0.0168 (5) | 0.0192 (5) | 0.0196 (5) | 0.0035 (4) | 0.0075 (4) | 0.0059 (4) |
C26 | 0.0177 (5) | 0.0200 (5) | 0.0144 (5) | −0.0014 (4) | 0.0071 (4) | 0.0043 (4) |
C27 | 0.0223 (5) | 0.0159 (5) | 0.0175 (5) | 0.0014 (4) | 0.0090 (4) | 0.0013 (4) |
C28 | 0.0183 (5) | 0.0177 (5) | 0.0180 (5) | 0.0038 (4) | 0.0086 (4) | 0.0039 (4) |
O29 | 0.0180 (4) | 0.0219 (4) | 0.0193 (4) | −0.0022 (3) | 0.0050 (3) | 0.0003 (3) |
C30 | 0.0250 (6) | 0.0247 (6) | 0.0251 (6) | −0.0044 (5) | 0.0085 (5) | −0.0036 (5) |
C31 | 0.0145 (5) | 0.0175 (5) | 0.0153 (5) | 0.0001 (4) | 0.0049 (4) | 0.0019 (4) |
O32 | 0.0370 (5) | 0.0195 (4) | 0.0298 (5) | 0.0100 (4) | 0.0215 (4) | 0.0072 (4) |
O33 | 0.0324 (4) | 0.0210 (4) | 0.0216 (4) | 0.0084 (3) | 0.0182 (4) | 0.0059 (3) |
C34 | 0.0340 (6) | 0.0259 (6) | 0.0248 (6) | 0.0081 (5) | 0.0203 (5) | 0.0042 (5) |
N35 | 0.0446 (6) | 0.0205 (5) | 0.0262 (5) | 0.0144 (5) | 0.0224 (5) | 0.0080 (4) |
C36 | 0.0291 (6) | 0.0173 (5) | 0.0191 (6) | 0.0073 (4) | 0.0074 (5) | 0.0001 (4) |
C37 | 0.0332 (6) | 0.0211 (6) | 0.0237 (6) | 0.0063 (5) | 0.0167 (5) | 0.0022 (5) |
O1—C12 | 1.3800 (12) | C19—H19A | 0.9300 |
O1—C2 | 1.4478 (12) | C20—H20A | 0.9300 |
C2—C3 | 1.5120 (15) | O21—C22 | 1.4291 (13) |
C2—C15 | 1.5306 (14) | C22—H22A | 0.9600 |
C2—C23 | 1.5327 (14) | C22—H22B | 0.9600 |
C3—C4 | 1.3350 (15) | C22—H22C | 0.9600 |
C3—H3A | 0.9300 | C23—C28 | 1.3894 (15) |
C4—C11 | 1.4654 (15) | C23—C24 | 1.3984 (15) |
C4—H4A | 0.9300 | C24—C25 | 1.3889 (15) |
C5—C6 | 1.3802 (15) | C24—H24A | 0.9300 |
C5—C11 | 1.4404 (14) | C25—C26 | 1.3942 (16) |
C5—C31 | 1.4851 (15) | C25—H25A | 0.9300 |
C6—C13 | 1.4054 (15) | C26—O29 | 1.3671 (13) |
C6—H6A | 0.9300 | C26—C27 | 1.3933 (15) |
C7—C8 | 1.3638 (16) | C27—C28 | 1.3943 (16) |
C7—C13 | 1.4200 (15) | C27—H27A | 0.9300 |
C7—H7A | 0.9300 | C28—H28A | 0.9300 |
C8—C9 | 1.4333 (15) | O29—C30 | 1.4260 (15) |
C8—H8A | 0.9300 | C30—H30A | 0.9600 |
C9—N35 | 1.3675 (15) | C30—H30B | 0.9600 |
C9—C10 | 1.3995 (15) | C30—H30C | 0.9600 |
C10—C14 | 1.4090 (15) | C31—O32 | 1.2094 (14) |
C10—H10A | 0.9300 | C31—O33 | 1.3486 (13) |
C11—C12 | 1.3824 (15) | O33—C34 | 1.4390 (14) |
C12—C14 | 1.4261 (14) | C34—H34A | 0.9600 |
C13—C14 | 1.4202 (14) | C34—H34B | 0.9600 |
C15—C20 | 1.3879 (15) | C34—H34C | 0.9600 |
C15—C16 | 1.3998 (15) | N35—C36 | 1.4504 (15) |
C16—C17 | 1.3849 (15) | N35—C37 | 1.4513 (15) |
C16—H16A | 0.9300 | C36—H36A | 0.9600 |
C17—C18 | 1.3948 (15) | C36—H36B | 0.9600 |
C17—H17A | 0.9300 | C36—H36C | 0.9600 |
C18—O21 | 1.3698 (13) | C37—H37A | 0.9600 |
C18—C19 | 1.3908 (15) | C37—H37B | 0.9600 |
C19—C20 | 1.3970 (15) | C37—H37C | 0.9600 |
C12—O1—C2 | 116.99 (8) | C15—C20—H20A | 119.3 |
O1—C2—C3 | 109.42 (8) | C19—C20—H20A | 119.3 |
O1—C2—C15 | 105.97 (8) | C18—O21—C22 | 117.02 (8) |
C3—C2—C15 | 109.14 (8) | O21—C22—H22A | 109.5 |
O1—C2—C23 | 109.16 (8) | O21—C22—H22B | 109.5 |
C3—C2—C23 | 112.37 (9) | H22A—C22—H22B | 109.5 |
C15—C2—C23 | 110.58 (8) | O21—C22—H22C | 109.5 |
C4—C3—C2 | 120.87 (10) | H22A—C22—H22C | 109.5 |
C4—C3—H3A | 119.6 | H22B—C22—H22C | 109.5 |
C2—C3—H3A | 119.6 | C28—C23—C24 | 118.21 (10) |
C3—C4—C11 | 120.16 (10) | C28—C23—C2 | 120.43 (9) |
C3—C4—H4A | 119.9 | C24—C23—C2 | 121.30 (10) |
C11—C4—H4A | 119.9 | C25—C24—C23 | 121.02 (10) |
C6—C5—C11 | 119.51 (10) | C25—C24—H24A | 119.5 |
C6—C5—C31 | 118.98 (10) | C23—C24—H24A | 119.5 |
C11—C5—C31 | 121.51 (9) | C24—C25—C26 | 120.02 (10) |
C5—C6—C13 | 121.62 (10) | C24—C25—H25A | 120.0 |
C5—C6—H6A | 119.2 | C26—C25—H25A | 120.0 |
C13—C6—H6A | 119.2 | O29—C26—C27 | 124.62 (10) |
C8—C7—C13 | 121.52 (10) | O29—C26—C25 | 115.66 (10) |
C8—C7—H7A | 119.2 | C27—C26—C25 | 119.71 (10) |
C13—C7—H7A | 119.2 | C26—C27—C28 | 119.52 (10) |
C7—C8—C9 | 121.28 (10) | C26—C27—H27A | 120.2 |
C7—C8—H8A | 119.4 | C28—C27—H27A | 120.2 |
C9—C8—H8A | 119.4 | C23—C28—C27 | 121.51 (10) |
N35—C9—C10 | 121.68 (10) | C23—C28—H28A | 119.2 |
N35—C9—C8 | 120.42 (10) | C27—C28—H28A | 119.2 |
C10—C9—C8 | 117.90 (10) | C26—O29—C30 | 117.17 (9) |
C9—C10—C14 | 120.94 (10) | O29—C30—H30A | 109.5 |
C9—C10—H10A | 119.5 | O29—C30—H30B | 109.5 |
C14—C10—H10A | 119.5 | H30A—C30—H30B | 109.5 |
C12—C11—C5 | 118.40 (10) | O29—C30—H30C | 109.5 |
C12—C11—C4 | 116.34 (9) | H30A—C30—H30C | 109.5 |
C5—C11—C4 | 125.22 (10) | H30B—C30—H30C | 109.5 |
O1—C12—C11 | 121.65 (9) | O32—C31—O33 | 121.29 (10) |
O1—C12—C14 | 115.09 (9) | O32—C31—C5 | 126.67 (10) |
C11—C12—C14 | 123.10 (10) | O33—C31—C5 | 112.01 (9) |
C6—C13—C7 | 121.91 (10) | C31—O33—C34 | 114.80 (9) |
C6—C13—C14 | 120.37 (10) | O33—C34—H34A | 109.5 |
C7—C13—C14 | 117.72 (10) | O33—C34—H34B | 109.5 |
C10—C14—C13 | 120.55 (10) | H34A—C34—H34B | 109.5 |
C10—C14—C12 | 122.51 (10) | O33—C34—H34C | 109.5 |
C13—C14—C12 | 116.94 (10) | H34A—C34—H34C | 109.5 |
C20—C15—C16 | 118.16 (10) | H34B—C34—H34C | 109.5 |
C20—C15—C2 | 122.70 (9) | C9—N35—C36 | 121.78 (10) |
C16—C15—C2 | 118.96 (9) | C9—N35—C37 | 119.72 (10) |
C17—C16—C15 | 121.08 (10) | C36—N35—C37 | 118.27 (10) |
C17—C16—H16A | 119.5 | N35—C36—H36A | 109.5 |
C15—C16—H16A | 119.5 | N35—C36—H36B | 109.5 |
C16—C17—C18 | 119.93 (10) | H36A—C36—H36B | 109.5 |
C16—C17—H17A | 120.0 | N35—C36—H36C | 109.5 |
C18—C17—H17A | 120.0 | H36A—C36—H36C | 109.5 |
O21—C18—C19 | 124.78 (10) | H36B—C36—H36C | 109.5 |
O21—C18—C17 | 115.47 (9) | N35—C37—H37A | 109.5 |
C19—C18—C17 | 119.74 (10) | N35—C37—H37B | 109.5 |
C18—C19—C20 | 119.46 (10) | H37A—C37—H37B | 109.5 |
C18—C19—H19A | 120.3 | N35—C37—H37C | 109.5 |
C20—C19—H19A | 120.3 | H37A—C37—H37C | 109.5 |
C15—C20—C19 | 121.37 (10) | H37B—C37—H37C | 109.5 |
C12—O1—C2—C3 | −43.91 (11) | O1—C2—C15—C16 | −178.39 (9) |
C12—O1—C2—C15 | −161.45 (8) | C3—C2—C15—C16 | 63.88 (12) |
C12—O1—C2—C23 | 79.44 (11) | C23—C2—C15—C16 | −60.22 (13) |
O1—C2—C3—C4 | 29.20 (13) | C20—C15—C16—C17 | 3.65 (16) |
C15—C2—C3—C4 | 144.74 (10) | C2—C15—C16—C17 | −171.58 (10) |
C23—C2—C3—C4 | −92.22 (12) | C15—C16—C17—C18 | 0.51 (17) |
C2—C3—C4—C11 | −1.02 (16) | C16—C17—C18—O21 | 173.93 (10) |
C11—C5—C6—C13 | −1.19 (16) | C16—C17—C18—C19 | −4.52 (16) |
C31—C5—C6—C13 | 179.32 (9) | O21—C18—C19—C20 | −174.01 (10) |
C13—C7—C8—C9 | −0.99 (17) | C17—C18—C19—C20 | 4.28 (16) |
C7—C8—C9—N35 | −178.09 (11) | C16—C15—C20—C19 | −3.87 (16) |
C7—C8—C9—C10 | 2.88 (16) | C2—C15—C20—C19 | 171.16 (10) |
N35—C9—C10—C14 | 179.14 (10) | C18—C19—C20—C15 | −0.05 (16) |
C8—C9—C10—C14 | −1.84 (16) | C19—C18—O21—C22 | 14.49 (15) |
C6—C5—C11—C12 | 0.19 (15) | C17—C18—O21—C22 | −163.87 (10) |
C31—C5—C11—C12 | 179.67 (9) | O1—C2—C23—C28 | 31.18 (13) |
C6—C5—C11—C4 | 178.05 (10) | C3—C2—C23—C28 | 152.75 (10) |
C31—C5—C11—C4 | −2.48 (16) | C15—C2—C23—C28 | −85.02 (12) |
C3—C4—C11—C12 | −14.54 (15) | O1—C2—C23—C24 | −151.49 (9) |
C3—C4—C11—C5 | 167.56 (10) | C3—C2—C23—C24 | −29.92 (13) |
C2—O1—C12—C11 | 32.06 (13) | C15—C2—C23—C24 | 92.30 (12) |
C2—O1—C12—C14 | −152.36 (9) | C28—C23—C24—C25 | 0.44 (16) |
C5—C11—C12—O1 | 177.05 (9) | C2—C23—C24—C25 | −176.94 (10) |
C4—C11—C12—O1 | −1.00 (15) | C23—C24—C25—C26 | −0.89 (16) |
C5—C11—C12—C14 | 1.82 (15) | C24—C25—C26—O29 | −179.12 (9) |
C4—C11—C12—C14 | −176.23 (9) | C24—C25—C26—C27 | 0.66 (16) |
C5—C6—C13—C7 | 179.48 (10) | O29—C26—C27—C28 | 179.75 (10) |
C5—C6—C13—C14 | 0.22 (16) | C25—C26—C27—C28 | −0.01 (16) |
C8—C7—C13—C6 | 178.80 (10) | C24—C23—C28—C27 | 0.23 (16) |
C8—C7—C13—C14 | −1.91 (16) | C2—C23—C28—C27 | 177.64 (10) |
C9—C10—C14—C13 | −1.04 (16) | C26—C27—C28—C23 | −0.45 (17) |
C9—C10—C14—C12 | 179.53 (10) | C27—C26—O29—C30 | −1.02 (16) |
C6—C13—C14—C10 | −177.79 (9) | C25—C26—O29—C30 | 178.75 (10) |
C7—C13—C14—C10 | 2.91 (15) | C6—C5—C31—O32 | 179.97 (11) |
C6—C13—C14—C12 | 1.67 (15) | C11—C5—C31—O32 | 0.49 (17) |
C7—C13—C14—C12 | −177.63 (9) | C6—C5—C31—O33 | −1.79 (14) |
O1—C12—C14—C10 | 1.21 (15) | C11—C5—C31—O33 | 178.72 (9) |
C11—C12—C14—C10 | 176.72 (10) | O32—C31—O33—C34 | −3.09 (16) |
O1—C12—C14—C13 | −178.24 (8) | C5—C31—O33—C34 | 178.57 (9) |
C11—C12—C14—C13 | −2.73 (15) | C10—C9—N35—C36 | −174.87 (11) |
O1—C2—C15—C20 | 6.61 (14) | C8—C9—N35—C36 | 6.14 (18) |
C3—C2—C15—C20 | −111.12 (11) | C10—C9—N35—C37 | −0.52 (18) |
C23—C2—C15—C20 | 124.78 (11) | C8—C9—N35—C37 | −179.51 (11) |
Experimental details
Crystal data | |
Chemical formula | C31H29NO5 |
Mr | 495.55 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 100 |
a, b, c (Å) | 9.8923 (1), 10.9535 (1), 12.1720 (2) |
α, β, γ (°) | 93.860 (1), 112.334 (1), 93.484 (1) |
V (Å3) | 1211.85 (3) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.09 |
Crystal size (mm) | 0.31 × 0.20 × 0.13 |
Data collection | |
Diffractometer | Bruker APEXII CCD diffractometer |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 22031, 6075, 5207 |
Rint | 0.021 |
(sin θ/λ)max (Å−1) | 0.670 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.040, 0.111, 1.05 |
No. of reflections | 6075 |
No. of parameters | 336 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.35, −0.25 |
Computer programs: APEX2 (Bruker, 2009), SAINT (Bruker, 2009), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), XP in SHELXTL (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008.
References
Bruker (2009). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Clarke, D. A., Heron, B. M., Gabbutt, C. D., Hepworth, J. D., Partington, S. M. & Corns, S. N. (2002). US Patent 6387512 B1. Google Scholar
Crano, J. C. & Guglielmetti, R. J. (1999). Editors. Organic Photochromic and Thermochromic Compounds, Vol 1. New York: Plenum Press. Google Scholar
Do, J. H., Hwang, K.-J., Kim, M.-H. & Kim, C.-H. (2011). Acta Cryst. E67, o230. Web of Science CSD CrossRef IUCr Journals Google Scholar
Gabbutt, C. D., Hepworth, J. D., Heron, B. M., Thomas, D. A., Kilner, C. & Partington, S. M. (2004). Heterocycles, 63, 567–582. CAS Google Scholar
Gabbutt, C. D., Heron, B. M., Instone, A. C., Thomas, D. A., Partington, S. M., Hursthouse, M. B. & Gelbrich, T. (2003). Eur. J. Org. Chem. pp. 1220–1230. Web of Science CSD CrossRef Google Scholar
Gemert, B. V. & Selvig, C. D. (2000). US Patent 6106744. Google Scholar
Kim, M.-H., Seo, J.-S., Kim, C.-H., Ryu, J.-W. & Lee, K.-H. (2010). Acta Cryst. E66, o66. Web of Science CSD CrossRef IUCr Journals Google Scholar
Kumar, A., Gemert, B. V. & Knowles, D. B. (1995). US Patent 5458814. Google Scholar
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This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
The synthesis and application of the organic photochromic and thermochromic dyes has become of great interest recently (Kumar et al., 1995; Gemert & Selvig, 2000; Nelson et al., 2002; Clarke et al. (2002); Gabbutt et al., 2003, 2004) because of potential uses as optical transmission materials, and as ophthalmic glasses and lenses. They also have potential uses in storage technologies as optical disks or memories (Crano & Guglielmetti, 1999). In particular, benzo and naphthopyrans have been commercialized as photochromic plastic sunglasses since the early 1990s. In our group, research has been focused on the development of novel photochromic benzo and naphthopyrans (Kim et al., 2010; Do et al., 2011). Herein, we report the crystal structure of methyl 9-(di methylamino)-2,2-bis(4-methoxyphenyl)-2H-benzo[h]chromene-5-carboxylate (Fig. 1 and 2) as a new photochromic material. In the title compound, C31H29NO5, the methyl carboxylate and the dimethylamino groups of the naphthopyran substituent are almost coplanar with the plane through the naphthopyran rings. The dihedral angle between the methyl carboxylate and the dimethylamino groups is 4.9 (1)°. The pyran ring of –C(2)—O(1)—C(12)—C(11)—C(4)—C(3)- has an envelope conformation with C(2) out of plane, C(2)—O(1) 1.448 (1) Å and C(2)—C(3) 1.512 (2) Å. The –O(21)—C(22) methoxy group of the phenyl substituent forms a dihedral angle of 16.6 (1) ° with the phenyl ring, while the –O(29)—C(30) methoxy group is almost coplanar with the plane through the phenyl ring, making a dihedral angle of 1.4 (1) °.